53 lines
1.1 KiB
Python
53 lines
1.1 KiB
Python
import numpy as np
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image = np.array([
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[100, 150, 200],
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[80, 120, 180],
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[60, 90, 140]
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], dtype=np.uint8)
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print("原图：")
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print(image)
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print("-" * 30)
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image_dark = np.clip(image - 20, 0, 255).astype(np.uint8)
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print("1. 变暗20后的图像：")
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print(image_dark)
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print("-" * 30)
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image_crop = image_dark[0:2, 0:2]
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print("2. 裁剪左上角2×2后的图像：")
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print(image_crop)
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print("-" * 30)
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image_flip = np.fliplr(image_crop)
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print("3. 水平翻转后的最终图像：")
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print(image_flip)
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import numpy as np
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img = np.array([
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[255, 255, 0, 0],
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[255, 255, 0, 0],
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[0, 0, 255, 255],
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[0, 0, 255, 255]
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], dtype=np.uint8)
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print("原始图像：")
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print(img)
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print("-" * 40)
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white_count = np.sum(img == 255)
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black_count = np.sum(img == 0)
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print(f"1. 白色像素(255)数量：{white_count}")
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print(f" 黑色像素(0)数量：{black_count}")
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print("-" * 40)
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img_flip = np.fliplr(img)
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print("2. 水平翻转后的图像：")
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print(img_flip)
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print("-" * 40)
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img_rot90 = np.flipud(img.T)
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print("3. 逆时针旋转90度后的图像：")
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print(img_rot90) |